CN107013552B - A kind of active intrusive mood bolt connection anti-loose structure and its moulding process - Google Patents
A kind of active intrusive mood bolt connection anti-loose structure and its moulding process Download PDFInfo
- Publication number
- CN107013552B CN107013552B CN201710183959.7A CN201710183959A CN107013552B CN 107013552 B CN107013552 B CN 107013552B CN 201710183959 A CN201710183959 A CN 201710183959A CN 107013552 B CN107013552 B CN 107013552B
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- China
- Prior art keywords
- bolt
- connected piece
- dna
- elasticity
- releaxed circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000036651 mood Effects 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 14
- 238000000465 moulding Methods 0.000 title claims description 10
- 108020004638 Circular DNA Proteins 0.000 claims abstract description 67
- 230000003172 anti-dna Effects 0.000 claims abstract description 62
- 238000005516 engineering process Methods 0.000 claims description 3
- 108020004414 DNA Proteins 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010003591 Ataxia Diseases 0.000 description 1
- 206010010947 Coordination abnormal Diseases 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000016290 incoordination Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/0241—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/284—Locking by means of elastic deformation
Abstract
The present invention relates to a kind of active intrusive mood bolt connection anti-loose structures, including bolt 1, elastic anti-2, first connected pieces 3 of DNA releaxed circular DNA and second connected piece 4, or including bolt 1, the anti-connected piece 3, second of DNA releaxed circular DNA 2, first connected piece 4 of elasticity, gasket 11 and nut 12；It is characterized by: having bolt external screw thread 5, polished rod 7 and bolt annular groove 7 on the bolt 1, the anti-DNA releaxed circular DNA 2 of elasticity is elastic opening ring and has guide surface 10；There are unthreaded hole, threaded hole and annular groove on the through-hole of first connected piece 3；Second connected piece 4 has tapped blind hole or tapped through hole.Pass through the dimensional parameters and first connected piece and second connected piece connecting portion dimensional parameters of determining bolt and the anti-DNA releaxed circular DNA of elasticity, carry out the processing and assembly of bolt, elasticity anti-DNA releaxed circular DNA, first connected piece and second connected piece, bolt fastening structure can be effectively prevent to get loose, guarantee the reliability of bolt fastening structure.
Description
Technical field
The invention belongs to field of mechanical structure design, and in particular to a kind of intrusive bolted anti-loose method of active with
Structure.
Background technique
Being bolted is mechanical structure one of the most common type mechanical connection manner, but is carried for bearing dynamic loading or impact
The bolt fastening structure of lotus, bolt fastening structure are influenced to will appear pine during military service by dynamic loading or impact loading
De- phenomenon, for example, the influence of vibrated dynamic loading in engine working process of the pedestal fixing bolt of engine is easy for occurring
It loosens.Bolt fastening structure is once got loose, and connected piece will be caused to occur to loosen or crack, and causes to be connected structure
It can not work normally.
For the reliability for improving bolt fastening structure, it will usually realize bolt fastening structure using various locking measures
Locking.For example, elastomeric pad is used to prevent bolt fastening structure from loosening to reach by bearing certain shock loading
Purpose；For another example, it is realized by the screw pitch and screw-down torque that optimize screw thread to the self-locking of bolt fastening structure, and then prevents bolt from connecting
Binding structure is got loose during the work time.
But existing screw retention measure all has certain limitation, can only prevent bolt from connecting to a certain extent
Binding structure is got loose.When bolt fastening structure bears the biggish shock loading of amplitude or the high-frequency oscillating load of amplitude
When, there are still the possibility got loose for bolt fastening structure.In addition, for the connected piece that two kinds of material properties have differences,
Due to the incoordination of deformation, traditional locking mode will be difficult to when being attached using bolt arrangement to both connected pieces
Play effective anti-loose effect.
For bearing the bolt fastening structure of shock loading by a relatively large margin or amplitude, the effect of high-frequency oscillating load, need
Novel bolt connection anti-loose structure is used, to prevent bolt fastening structure from getting loose during military service, to realize quilt
Being reliably connected between connector.
Summary of the invention
The present invention proposes a kind of active intrusive mood bolt connection anti-loose structure and moulding process.Bolted-on attachment may be implemented
Structure is reliably connected, and is effectively prevented bolt fastening structure and is got loose.
Technical solution of the present invention:
A kind of active intrusive mood bolt connection anti-loose structure, including bolt, the anti-DNA releaxed circular DNA of elasticity, first connected piece and the
Two connected pieces,
Bolt light rod is successively arranged on the screw rod of the bolt from nut to end, with first connected piece and second
The bolt external screw thread that connected piece mutually assembles has the bolt annular groove for assembling the anti-DNA releaxed circular DNA of elasticity on the bolt light rod；
The anti-DNA releaxed circular DNA of elasticity is elastic opening ring, has assembly technology to fall on the inside of a side end face of the anti-DNA releaxed circular DNA of elasticity
Angle, flexible anti-DNA releaxed circular DNA guide surface on the outside of another side end face；
There is through-hole on first connected piece, there is same bolt light rod mutually to fill on the through-hole of first connected piece
The threaded hole that the unthreaded hole matched mutually is assembled with same bolt external screw thread；Have on the unthreaded hole of first connected piece for assembling elasticity
First connected piece annular groove of anti-DNA releaxed circular DNA, one end on the unthreaded hole of first connected piece close to bolt nut have first
A connected piece guide surface, first connected piece guide surface is towards inside；Second connected piece has and bolt
The mutually tapped blind hole or tapped through hole of assembly；
The bolt is screwed by screw thread when being assembled together with first connected piece and second connected piece, described
The anti-DNA releaxed circular DNA of elasticity is assemblied in bolt annular groove and first connected piece annular groove, and the anti-DNA releaxed circular DNA guide surface of elasticity is towards outside bolt
The side of screw thread.
Further, the base diameter of the bolt annular groove on the bolt is greater than the externally threaded bottom diameter of bolt.
Further, further include gasket and nut, first connected piece of the screw bolt passes, second be connected
It is fixed after part and gasket by nut.
The moulding process of above-mentioned active intrusive mood bolt connection anti-loose structure, comprising the following steps:
A, determine bolt and the anti-DNA releaxed circular DNA of elasticity parameters of structural dimension and first connected piece and second it is connected
The connecting portion dimensional parameters of part；
B, the processing of bolt, the anti-DNA releaxed circular DNA of elasticity, first connected piece and second connected piece；
C, the assembly of elasticity anti-DNA releaxed circular DNA and bolt；
D, assembly of the bolt with first connected piece and second connected piece.
The anti-DNA releaxed circular DNA of elasticity is placed in bolt annular groove in step c, the anti-DNA releaxed circular DNA guide surface of elasticity has screw thread towards bolt
The side at end.
The bolt equipped with the anti-DNA releaxed circular DNA of elasticity in step c is connected with first connected piece and second in step d
Part is screwed by screw thread and is assembled together, and guarantees that the anti-DNA releaxed circular DNA of elasticity is assemblied in bolt annular groove and first connected piece annular groove,
If the threaded hole of second connected piece is through-hole, gasket and nut can be further installed.
The beneficial effects of the present invention are:
A kind of intrusive bolted anti-loose structure of active and its moulding process, according to first connected piece and second
The structural parameters of a connected piece, the reasonable dimensional parameters for determining bolt and the anti-DNA releaxed circular DNA of elasticity and first connected piece with
On the basis of second connected piece connecting portion dimensional parameters, pass through bolt, the anti-DNA releaxed circular DNA of elasticity, first connected piece and the
The processing and assembly of two connected pieces, can effectively prevent bolt fastening structure to get loose, fully ensure that between connected piece
Connection reliability.The base diameter of annular groove is greater than external screw thread bottom diameter on bolt, can fully ensure that the bonding strength of bolt.It will
The anti-DNA releaxed circular DNA of elasticity is assemblied in bolt annular groove and first connected piece annular groove, and effectively lock can be realized to bolt fastening structure
Tightly, prevent bolt from getting loose.The anti-DNA releaxed circular DNA of elasticity is split ring, convenient for the assembly of the anti-DNA releaxed circular DNA of elasticity.The anti-DNA releaxed circular DNA of elasticity and first
There is guide surface on a connected piece, convenient for the assembly between the same bolt of the anti-DNA releaxed circular DNA of elasticity, first connected piece.Elasticity is locking
Ring is first assemblied in bolt annular groove, then bolt is screwed assembly by screw thread with first connected piece and second connected piece
Together, it can be achieved that actively intrusive lock, while convenient for assembly.
Detailed description of the invention
Fig. 1 is bolt arrangement schematic diagram.
Fig. 2 is the locking ring structure schematic diagram of elasticity.
Fig. 3 is the locking ring structure schematic diagram of elasticity.
Fig. 4 is first connected piece structural schematic diagram.
Fig. 5 is the intrusive bolt of active anti-loose structure schematic diagram in succession.
Fig. 6 is the schematic diagram of actively intrusive bolt anti-loose structure another kind embodiment in succession.
1 bolt, the 2 anti-connected piece 4 second of DNA releaxed circular DNA 3 first connected piece of elasticity
5 bolt external screw thread, 6 bolt light rod, 7 bolt annular groove
8 first connected piece annular grooves, 9 first connected piece guide surfaces
10 anti-11 gasket of DNA releaxed circular DNA guide surface, 12 nuts of elasticity
Specific embodiment
Embodiment 1: a kind of active intrusive mood bolt connection anti-loose structure, including bolt 1, anti-2, first quilts of DNA releaxed circular DNA of elasticity
Connector 3 and second connected piece 4, as shown in Figure 1, being successively arranged bolt from nut to end on the screw rod of the bolt 1
Polished rod 6, the bolt external screw thread 5 mutually assembled with second connected piece 4 with first connected piece 3 have on the bolt light rod 6
For assembling the bolt annular groove 7 of the anti-DNA releaxed circular DNA 2 of elasticity；As shown in Figure 2,3, the anti-DNA releaxed circular DNA 2 of the elasticity is elastic opening ring, the bullet
Property anti-DNA releaxed circular DNA 2 a side end face on the inside of have assembly technology chamfering, flexible anti-DNA releaxed circular DNA guide surface 10 on the outside of another side end face is described
The normal of the anti-DNA releaxed circular DNA guide surface 10 of elasticity is preferably 60 ° -75 ° with the axis angle of the anti-DNA releaxed circular DNA 2 of elasticity.
As shown in figure 4, there is through-hole on first connected piece 3, have on the through-hole of first connected piece 3 same
The threaded hole that the unthreaded hole of 6 phase of bolt light rod assembly is mutually assembled with same bolt external screw thread 5；The unthreaded hole of first connected piece 3
On have first connected piece annular groove 8 for assembling the anti-DNA releaxed circular DNA 2 of elasticity, it is close on the unthreaded hole of first connected piece 3
There is first connected piece guide surface 9 in one end of 1 nut of bolt, and first connected piece guide surface 9 is towards inside, method
Line is 60 ° -75 ° with the through-bore axis angle recommendation of first connected piece 3；Second connected piece 4 is equipped with and spiral shell
The tapped blind hole or tapped through hole of 1 phase of bolt assembly；It is assembled as shown in figure 5, second connected piece 4 is equipped with 1 phase of bolt
Tapped blind hole.As shown in fig. 6, second connected piece 4 is equipped with the tapped through hole assembled with 1 phase of bolt, the bolt 1
It is fixed after sequentially passing through first connected piece, 3, second connected pieces 4 and gasket 11 by nut 12.
The bolt 1 is screwed by screw thread when being assembled together with first connected piece 3 and second connected piece 4,
The anti-DNA releaxed circular DNA 2 of elasticity is assemblied in bolt annular groove 7 and first connected piece annular groove 8, the anti-DNA releaxed circular DNA guide surface 10 of elasticity
Towards the side of bolt external screw thread 5.The base diameter of bolt annular groove 7 on the bolt 1 is greater than the bottom diameter of bolt external screw thread 5.
The moulding process of above-mentioned active intrusive mood bolt connection anti-loose structure, comprising the following steps:
A, the parameters of structural dimension and first connected piece 3 and second for determining bolt 1 and the anti-DNA releaxed circular DNA 2 of elasticity are connected
The connecting portion dimensional parameters of fitting 4: according to the parameters of structural dimension of first connected piece 3 and second connected piece 4, really
Determine the size of bolt external screw thread 5, bolt light rod 6 and bolt annular groove 7, determines internal diameter, outer diameter, the width, opening of the anti-DNA releaxed circular DNA 2 of elasticity
The size of angle and the anti-DNA releaxed circular DNA guide surface 10 of elasticity determines that first connected piece 3 is mutually assembled with bolt 1 with the anti-DNA releaxed circular DNA 2 of elasticity
Threaded hole, unthreaded hole, first connected piece annular groove 8 and first connected piece guide surface 9 size；Determine that second is connected
The size of tapped blind hole or threaded hole that fitting 4 is assembled with 1 phase of bolt；For example, structure is connected according to certain, outside determining bolt
The size of screw thread 5 is M12 × 1-p6p6, and the diameter of bolt light rod 6 is Ф 14mm, length 16mm, and the size of bolt annular groove 7 is deep
For 1.7mm, width 2mm；The internal diameter of the determining anti-DNA releaxed circular DNA 2 of elasticity in the mounted state is Ф 12.2mm, outer diameter be Ф 16.6mm,
Width 2mm, opening angle are 1 °, the axis angle of the same elasticity of the normal of the anti-DNA releaxed circular DNA guide surface 10 of elasticity is 60 °；Determining first
A connected piece 3 is M12 × 1-H7H7 with the dimension of inner screw thread that bolt 1 assembles, and the unthreaded hole diameter of first connected piece 3 is Ф
14mm, length 16mm, the normal of first connected piece guide surface 9 are 60 ° with through-bore axis angle, first quilt determined
The size depth of first connected piece annular groove 8 of connector 3 is 1mm, width 2mm；The determining same bolt of second connected piece 4
The tapped blind hole of 1 phase assembly or the dimension of inner screw thread of threaded hole are M12 × 1-H7H7.
B, the processing of bolt 1, elasticity anti-DNA releaxed circular DNA 2, first connected pieces 3 and second connected piece 4: according to step a
The dimensional parameters of determining bolt 1, elasticity anti-DNA releaxed circular DNA 2, first connected pieces 3 and second connected piece 4, carry out outside bolt
The processing of screw thread 5, bolt light rod 6 and bolt annular groove 7 carries out internal diameter, outer diameter, width, opening angle and the bullet of the anti-DNA releaxed circular DNA 2 of elasticity
The processing of the anti-DNA releaxed circular DNA guide surface 10 of property, carries out the threaded hole, unthreaded hole, first 8 and of connected piece annular groove of first connected piece 3
The processing of first connected piece guide surface 9 carries out tapped blind hole or screw thread that second connected piece 4 is assembled with 1 phase of bolt
The processing in hole；
C, the assembly of elasticity anti-DNA releaxed circular DNA 2 and bolt 1: the anti-DNA releaxed circular DNA 2 of elasticity is placed in bolt annular groove 7, the anti-DNA releaxed circular DNA of elasticity
Guide surface 10 is towards the side of 1 threaded end of bolt, as shown in Figure 5 and Figure 6；
D, assembly of the bolt 1 with first connected piece 3 and second connected piece 4: will be locking equipped with elasticity in step c
The bolt 1 of ring 2 is screwed by screw thread and is assembled together with first connected piece 3 and second connected piece 4, guarantees that elasticity is anti-
DNA releaxed circular DNA 2 is assemblied in bolt annular groove 7 and first connected piece annular groove 8, if the threaded hole of second connected piece 4 is logical
Hole can further install gasket 11 and nut 12, as shown in Figure 5 and Figure 6.
Claims (3)
1. a kind of moulding process of active intrusive mood bolt connection anti-loose structure, it is characterised in that:
The active intrusive mood bolt connection anti-loose structure includes bolt, the anti-DNA releaxed circular DNA of elasticity, first connected piece and second
Connected piece,
Bolt light rod is successively arranged on the screw rod of the bolt from nut to end, is connected with first connected piece and second
The bolt external screw thread that fitting mutually assembles has the bolt annular groove for assembling the anti-DNA releaxed circular DNA of elasticity on the bolt light rod；
The anti-DNA releaxed circular DNA of elasticity is elastic opening ring, has assembly technology chamfering on the inside of a side end face of the anti-DNA releaxed circular DNA of elasticity, separately
Flexible anti-DNA releaxed circular DNA guide surface on the outside of one side end face；
There is through-hole on first connected piece, there is same bolt light rod mutually to assemble on the through-hole of first connected piece
The threaded hole that unthreaded hole is mutually assembled with same bolt external screw thread；Have on the unthreaded hole of first connected piece locking for assembling elasticity
There is first quilt in first connected piece annular groove of ring, one end on the unthreaded hole of first connected piece close to bolt nut
Connector guide surface, first connected piece guide surface is towards inside；Second connected piece has mutually to be filled with bolt
The tapped blind hole or tapped through hole matched；
The bolt is screwed by screw thread when being assembled together with first connected piece and second connected piece, the elasticity
Anti- DNA releaxed circular DNA is assemblied in bolt annular groove and first connected piece annular groove, and the anti-DNA releaxed circular DNA guide surface of elasticity is towards bolt external screw thread
Side；The base diameter of bolt annular groove on the bolt is greater than the externally threaded bottom diameter of bolt；
The moulding process the following steps are included:
A, the parameters of structural dimension and first connected piece and second connected piece of bolt and the anti-DNA releaxed circular DNA of elasticity are determined
Connecting portion dimensional parameters；
B, the processing of bolt, the anti-DNA releaxed circular DNA of elasticity, first connected piece and second connected piece；
C, the assembly of elasticity anti-DNA releaxed circular DNA and bolt；
D, assembly of the bolt with first connected piece and second connected piece.
2. moulding process according to claim 1, it is characterised in that: the anti-DNA releaxed circular DNA of elasticity is placed on bolt in step c
In annular groove, the anti-DNA releaxed circular DNA guide surface of elasticity is towards the side of bolt threaded end.
3. moulding process according to claim 1, it is characterised in that: the anti-DNA releaxed circular DNA of elasticity will be housed in step d in step c
Bolt screw and be assembled together by screw thread with first connected piece and second connected piece, guarantee that the anti-DNA releaxed circular DNA of elasticity fills
It fits in bolt annular groove and first connected piece annular groove, if the threaded hole of second connected piece is through-hole, can further pacify
Fill gasket and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183959.7A CN107013552B (en) | 2017-03-24 | 2017-03-24 | A kind of active intrusive mood bolt connection anti-loose structure and its moulding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710183959.7A CN107013552B (en) | 2017-03-24 | 2017-03-24 | A kind of active intrusive mood bolt connection anti-loose structure and its moulding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107013552A CN107013552A (en) | 2017-08-04 |
| CN107013552B true CN107013552B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710183959.7A Active CN107013552B (en) | 2017-03-24 | 2017-03-24 | A kind of active intrusive mood bolt connection anti-loose structure and its moulding process |
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| CN (1) | CN107013552B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3508737B1 (en) * | 2018-01-08 | 2022-03-09 | ZKW Group GmbH | Connection assembly for headlamp components |
| CN108506317A (en) * | 2018-06-27 | 2018-09-07 | 浙江洪扬汽车零部件有限公司 | A kind of locking self-clinching nut |
| CN110056578A (en) * | 2019-05-10 | 2019-07-26 | 中国航发湖南动力机械研究所 | Bearing compresses locking device |
| CN110332205B (en) * | 2019-07-20 | 2020-12-01 | 浦江县恒川信息科技有限公司 | Stable form check bolt |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1269611A (en) * | 1970-01-05 | 1972-04-06 | Paterex Ltd | Lock nut device |
| US3863421A (en) * | 1973-05-21 | 1975-02-04 | Standard Pressed Steel Co | Self-retained panel fastener assembly |
| JP2000199513A (en) * | 1999-01-07 | 2000-07-18 | Mitsubishi Heavy Ind Ltd | Drop prevention bolt and working device using it |
| JP2002181018A (en) * | 2000-12-18 | 2002-06-26 | Nippon Steel Corp | Torque shear type high tension bolt and bolt joint method |
| CN204061492U (en) * | 2014-07-15 | 2014-12-31 | 北京汽车研究总院有限公司 | A kind of chek bolt, nut set |
| US20150135510A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Locking system for a threaded connection |
-
2017
- 2017-03-24 CN CN201710183959.7A patent/CN107013552B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1269611A (en) * | 1970-01-05 | 1972-04-06 | Paterex Ltd | Lock nut device |
| US3863421A (en) * | 1973-05-21 | 1975-02-04 | Standard Pressed Steel Co | Self-retained panel fastener assembly |
| JP2000199513A (en) * | 1999-01-07 | 2000-07-18 | Mitsubishi Heavy Ind Ltd | Drop prevention bolt and working device using it |
| JP2002181018A (en) * | 2000-12-18 | 2002-06-26 | Nippon Steel Corp | Torque shear type high tension bolt and bolt joint method |
| US20150135510A1 (en) * | 2013-11-18 | 2015-05-21 | Weatherford/Lamb, Inc. | Locking system for a threaded connection |
| CN204061492U (en) * | 2014-07-15 | 2014-12-31 | 北京汽车研究总院有限公司 | A kind of chek bolt, nut set |
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| CN107013552A (en) | 2017-08-04 |
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